The silence is utterly baffling indeed....
1. Along with DAO in Herts, the school was the inspiration behind Fight Club
2. Late applicants will be allowed to sit the same paper at any time between now and next September.
3. Candidates and their DP had to swear an oath of secrecy, along with an oath of secrecy regarding the fact of having had to swear said oath (which explains why no-one has even responded to tell you that they couldn't tell you, even if they wanted to).
Sorry not to be able to be any help myself, having no knowledge at all of St.Olave's apart from roughly where it is. I hope that someone in the relevant area will at least come along soon to tell you that they would love to help but are not allowed to.